oheFlorida Entomologist

Official Organ of the Florida Entomological Society

VOL. XVI JANUARY, 1933 No.4

FIVE NEW SPECIES OF ANURAPHIS AND APHIS*

A. N. TISSOT

The aphid species described in this paper have the caudaeither distinctly conical or with a very definite constriction andare being referred, to the two genera, Anuraphis and Aphis. Ifthe view now held by some writers, that the species of these twogroups really represent one gel1us, beccmes estab~ished, then thefive species here considered will of course all fall under thegenus Aphis.

ANURAPHIS ARVNDIN ARIAE, new species

Alate 1Jiviparous female. (Plate III, figs. 1-6.) General color of bodyand appendages brown. Length of body 1.64 mm. Head very dark brown.Width much greater than the length. Posterior margin somewhat curved,front between the antennae strongly arched. Dorsal surface with a fewvery short fine spines each arising from a minute circular clear area. Widthof head across the eyes .408 mm. Eyes dark reddish-brown; large, promi­nent, with elongated ocular tubercles. Ocelli large, bordered with black.Antennae dark brown except a small basal portion of the third segmentwhich is somewhat lighter than the rest; six-segmented, reaching aboutto the middle of the abdomen. The unguis of the sixth segment slightlylonger than the third segment and the fourth longer than the fifth. Thefirst two segments smooth, the remaining segments definitely imbricated,all segments with a few very short reclining spines. Length of antennalsegments as follows: I, .068 mm., II, .048 mm., III, .286 mm., IV, .204mm., V, .163 mm., VI, base, .082 mm., unguis, .326 mm. Third segmentwith 13 oval to circular sensoria scattered over most of one side of thesegment; fourth segment with 5 sensoria arranged in a single rather evenrow; fifth SEgment with one rather small sensorium in addition to thelarger terminal one; sixth segment with the usual group of one large anda few small sensoria at the base of the unguis. Rostrum light brown withthe tip dark brown, thick and short, reaching only slightly beyond theprothorax.

Thorax brown; the dorsal lobes of the thorax dark brown, concolor­ous with the head; wing insertions brown. The prothorax and the an­terior margin of the mesothorax with cone-shaped lateral tubercles. Wings..

':'Contribution from Department of Entomology, Florida AgriculturalExperiment Station. Pubiished January, 1933.

50

23

THE FLORIDA ENTOMOLOGIST

Explanation of Plate III

A nuraphis arundinariae n. sp.Figs. 1-5-Alate viviparous female.Figs. 6-8-Apterous viviparous female.

Anuraphis iteae n. sp.Figs. 9-14-Alate viviparous female.Figs. 15-18-Apterous viviparous female.

A nuraphis minima n. sp.Figs. 19-23-Apterous viviparous female.Figs. 24-25-Male. Figs. 26-27-0viparous female.

Aphis astericola n. sp.Figs. 28-32-Alate viviparous female.Figs. 33-35-Apterous viviparous female.

• Aphis floridanae n. sp.Figs. 36-40-Alate viviparous female.Figs. 41-44-Apterous viviparous female.

VOL. XVI-No. 4 51

hyaline, stigma dark brown, veins black. Fore wing with the media twice­bra-nched, the second fork much nearer to the margin of the wing thanto the first fork. Hind wing with two oblique veins. Legs dark brownwith the bases of the femora yellowish. The forelegs slightly lighter thanthe other two pairs.

Abdomen yellowish-brown with dark brown markings as follows: anirregular, median, longitudinal band on the dorsal surface, two rows ofmore or less connected black spots along each lateral margin, and twowide transverse bands between the cornicles and the cauda. Small cone­shaped lateral tubercles on several of the abdominal segments. Corniclesdark brown; elongated, wider at the base and apex and slightly constrictedin the middle. Deeply imbricated, giving the surface a wrinkled appear­ance. Length, .204 mm. Cauda and anal plate very dark brown. Caudacone-shaped without a constriction, the surface covered with short, thick,spine-like processes, four curved hyaline hairs on each side near the tip.Anal plate hemispherical, the surface covered with spine-like processessimilar to those of the cauda, armed with numerous rather long slightlycurved hyaline hairs arising from conical bases. Length of cauda .109 mm.

Apterous viviparous fmnale. (Plate III, figs. 6-8.) General color ofbody and appendages brown. Length of body 1.56 mm. Head dark brown,very short antennal tubercles, the anterior margin between the antennaestrongly arched. The dorsal surface with a few short hyaline hairs arisingfrom conical bases. Eyes very dark reddish-brown. Width of head acrossthe eyes .408 mm. Antenna dark brown, except the basal half of thethird segment which is light brown. Segments III to VI very definitelyimbricated. Length of segments as follows: I, .082 mm., II, .054 mm., III,.258 mm., IV, .163 mm., V, .163 mm., VI, base, .082 mm., unguis, .326 mm.Segments without sensoria except the primary ones of the fifth and sixthsegments. Rostrum light brown with dark brown tip, thick and rathershort, reaching only to the second coxae.

Thorax and abdomen yellowish-brown, darker brown along the lateralmargins. Prothorax and some of the abdominal segments with elongated,round tipped, lateral tubercles. Surface of the abdomen reticulated, espe­cially along the sides. Legs medium brown, the hind pair somewhat dark­er than the preceding pairs. Cornicles dark brown; widest at the baseand very slightly constricted in the middle. Cornicles definitely imbricatedthroughout their length and having a wrinkled appearance. Length .272mm. Cauda and anal plate dark brown. Cauda triangular, the surfacecovered with blunt spine-like processes. Four curved, hyaline hairs oneach side near the apex. Anal plate hemispherical with the surface cov­ered with spine-like processes similar to those of the cauda, and armedwith several slightly curved hyaline hairs, each arising from a conicalbase. Length of cauda, .122 mm.

Type locality: Gainesville, Florida.T1Jpes: Holotype alate viviparous female from Arundinaria

tecta, Apr. 16, 1930, and morphotype, apterous viviparous fe­male, same data as the holotype, deposited in the U. S. NationalMuseum Collection, Cat. No. 44292. Paratypes from the same

52 THE FLORIDA ENTOMOLOGIST

lot in the collection of the Entomology Department, FloridaAgricultural Experiment Station, and in that of the author.Type selected from a series of 20 alate viviparous females. Typematerial collected by the author.

Notes: This brown aphid occurred in thick colonies on theventral side of the younger leaves of cane-brake. The most dis­tinctive feature which serves to separate the species from otherspecies of the genus is the form of the cornicles. The fact thatthese structures are narrowed in the middle and wider at thebase and apex may be sufficient reason for placing this form inanother genus but for the present it seems best to retain it inthe genus Anuraphis. Measurement of ten alate females indi­cate the following range in size: length, 1.40-1.64 mm.; widthof head, .367-.408 mm.; antennal segments, III, .245-.286 mm.,IV, .163-.204 mm., V, .136-.183 mm., VI, base, .074-.082 mm.,unguis, .286-.326 mm.; length of cornicles, .190-.218 mm.; thirdsegment of the antenna with 6-13 sensoria, fourth segment with2-5 sensoria and the fifth segment with 0-2 sensoria.

Records: A rundinaria tecta, Cane-brake, Gainesville, Apr. 16,1930 (F 588-30).

ANURAPHIS ITEAE, new species

Alate viviparous female. (Plate III, figs. 9-14.) General color ofbody and appendages brown. Length of body, 1.36 mm. Head dark brown.Width greater than the length, posterior margin nearly straight, frontalportion between the antennae produced. Anterior margin with a few shortspines. Width through the compound eyes .340 mm. Eyes dark reddish­brown; large, with large prominent ocular tubercles. Ocelli bordered withblack. Antennae six-segmented, about three-fourths as long as body. Thesixth segment far exceeding the others in length, nearly or quite as longas the combined lengths of the three preceding segments. The first twoantennal seglpents dark brown though somewhat lighter than the head,the remaining segments light brown or dusky. First two segments smooth,remaining segments imbricated. The third segment considerably thickerthan the succeeding segments. Length of the antennal segments as fol­lows: I, .068 mm., II, .048 mm., III, .177 mm., IV, .122 mm., V, .117 mm.,VI, base, .075 mm., unguis, .381 mm. Third segment with 7 rather largecircular sensoria, fourth segment without sensoria, the usual apical sen­sorium on the fifth segment and the group at the base of the unguis ofthe sixth segment. Antennal segments with a few minute spines. Ros­trum light brown with dark brown tip, thick and short, reaching but littlebeyond the posterior margin of the prothorax.

Thorax brown, the dorsal lobes concolorous with the head. Prothoraxwith conical lateral tubercles. Wings hyaline, stigma and veins brown.Forewing with media twice-branched. Distance between first and second

VOL. XVI-No. 4 53

forks about two and one-half times as great as distance from second forkto margin of wing. Hind wing with two oblique veins. Femora of thelegs dark brown with bases yellowish, tibiae and tarsi yellowish or dusky.End of tibiae funnel-like. Tibiae of all pairs of legs with a peculiar knob­like structure at the apex.

Abdomen brown, apparently with darker markings. Rather prominentlateral tubercles on some of the segments, the one between the corniclesand cauda larger than the preceding ones. Cornicles dark brown; short,somewhat curved, of almost equal width from base to apex; imbricated.Length, .088 mm. Cauda and anal plate very dark brown or black. Caudaabruptly conical, without a constriction, about as long as the cornicles.Surface covered with numerous short, thick, spine~like processes. Fouror five much curved hairs on each side near the apex. Anal plate broadlyrounded, the surface covered with spine-like processes similar to those ofthe cauda. Several long slightly curved, hyaline hairs arising from con­ical bases.

Apterous viviparous female. (Plate III, figs. 15-18.) General color ofthe body and appendages brown. Length of body, 1.20 mm. Body broadly

oval, but little longer than wide. Head dark brown. Much wider than long,the anterior margin between the antennae somewhat produced. Eyes darkreddish-brown; rather small with prominent ocular tubercles. First twoantennal segments concolorous with the head, the remaining segmentslighter brown. The two basal segments smooth, the remaining ones faintlyimbricated, without sensoria except the usual primary ones at the apexof the fifth segment and at the base of the unguis of the sixth. Lengthof the antennal segments as follows: I, .075 mm., II, .054 mm., III, .231mm., IV, .136 mm., V, .122 mm., VI, base, .082 mm., unguis, .340 mm. Ros­trum dark brown, thick and short, reaching only to first coxae.

Thorax and abdomen reddish-brown with darker brown markings. Theskin of the abdomen very definitely reticulated. Femora of all pairs oflegs reddish-brown, tibiae yellowish, tarsi brown. The apex of the tibiaewith the same knob-like structure found in the alate female. Corniclesdark brown; of uniform width from base to apex; surface covered withfine imbrications. Length, .128 mm. Cauda broad and blunt without con­strictions, the surface covered with numerous short, thick, spine-like pro­cesses, five long curved hyaline hairs on each side. Anal plate broad,slightly rounded, the surface covered with the shorter spine-like struc­tures similar to those of the cauda, armed with numerous hairs shorterand finer than those of the cauda.

Type locality: Keystone Heights, Florida.Types: Holotype alate viviparous female collected Apr. 24,

1927 (F 217-27), deposited in the U. S. National Museum Collec­tion, Cat. No. 44291. Paratypes from the same lot as the holotypein the collections of the Entomology Department of the FloridaExperiment Station, and in that of the author. Type selectedfrom a series of ten alate viviparous females. Type material col­lected by the author.

54 THE FLORIDA ENTOMOLOGIST

Notes: This brown aphid in general appearance resemblesAmlTaphis caliginosa H. & F. from dogwood. A closer examina­tion of the two species will, however, reveal the following dif­ferences: the sixth antennal segment in comparison with theother segments is much longer in iteae. The lateral tubercles ofthe thorax and abdomen are very much larger in caliginosa andthe cauda is armed with numerous hairs as contrasted with thefew hairs on the cauda of iteae. A study of the alate females gavethe following measurements: length, 1.08-1.52 mm.; width ofhead through the eyes, .313-.354 mm.; antennal segments, III,.150-.231 mm., IV, .095-.136 mm., V, .109-.136 mm., VI, base,.075-.095 mm., unguis, .313-.394 mm.; length of cornicIe, .088­.109 mm.; third segment of the antenna with 5-9 sensoria, theusual number being 6 or 7.

Records: !tea viTginica, Keystone Heights, Apr. 24, 1927(F 217-27).

ANURAPHIS MINIMA, new species

Apterous viviparous female. (Plate III, figs. 19-23.) Prevailing colorbrown. Body broadly pear-shaped. Length 1.04 mm. Head pale yellowish­brown to dark reddish-brown. Width across the compound eyes .313 mm.Front of head rounded, posterior margin nearly straight. Eyes very darkbrown, with large ocular tubercles. Antennae six-segmented, reachingabout to the middle of the abdomen. The third and fourth segments onlypartially separated, in most specimens completely fused. The first two seg­ments brown, the third, fourth, and base of the fifth pale, the apical por­tion of the fifth and all of the sixth brown. The first two segments smooth,the remaining ones imbricated. All segments with a few short spines.The usual sensoria near the apex of the fifth segment and the base of theunguis of the sixth. Length of antennal segments as follows: I, .06 mm.,II, .045 mm., Ill, .114 mm., IV, .099 mm., V, .105 mm., VI, base, .072 mm.,unguis, .134 mm. Rostrum rather thick, reaching to the third coxae.

Thorax and abdomen yellowish-brown to dark reddish-brown. Just infront of and between the cornicles a few dull greenish markings. The pro­thorax with very large elongated cone-shaped lateral tubercles. Similarlateral tubercles on the first abdominal segment and another pair betweenthe cornicles and the cauda, those of the latter pair somewhat smallerthan in the two preceding ones. Legs brown, the tarsi and the apices ofthe femora and tibiae somewhat darker than the remaining portions.The femora and tibiae with numerous rather long, curved, hyaline hairs.Cornicles very dark brown, cylindrical, or slightly tapering from base toapex. Definitely imbricated throughout their length. Length, .109 mm.Cauda dark brown, broadly conical, the tip rounded. Four or five ratherlong curved hairs on each side. Anal plate dark brown, large, roundedand armed with numerous slightly curved hairs. The surface of the caudaand anal plate thickly studded with short, thick, spinelike processes.

VOL. XVI-No. 4 55

Apterous nude. (Plate III, figs. 24, 25.) Prevailing color brown.Length from vertex to tip of cauda .914-.971 mm. Head dark brown. Widthmuch greater than the length, frontal margin rounded. Width througheyes .285-.300 mm. Eyes reddish-brown, with large ocular tubercles. An­tennae brown, first two segments and base of the third lighter than thehead, remainder very dark brown, almost black. First two segmentssmooth, remaining ones imbricated. All segments with a few very shortand fine hyaline hairs. Third and fourth segments each with 1-3 sensoria,fifth segment with 1 or 2 sensoria in addition to the terminal primaryone. Length of antennal segments as follows: III, .143-.150 mm., IV,.085-.092 mm., V, .085-.092 mm., VI, base, .071-.078 mm., unguis, .100-.114mm. Rostrum brown with apex black, reaching to coxae of last pair oflegs.

Prothorax brown, slightly lighter than the head; remainder of thoraxand the abdomen reddish- or yellowish-brown, much lighter than the head.Prothorax with large blunt lateral tubercles similar to those of the vivi­parous female. Legs brown, the bases of the femora and tibiae yellowish­brown, the apices and the tarsi dark brown. First abdominal segmentwith lateral tubercles similar in shape but somewhat smaller than thoseof the prothorax; more pointed tubercles on the segment posterior to thecornicles and sometimes on the other segments also. Cornicles dark brown,nearly cylindrical without a flare at the apex, definitely imbricated. Length.078-.085 mm. Cauda concolorous with the abdomen, short and abruptlyconical with the tip rounded. Four or five rather long, slightly curvedhyaline hairs on each side. Anal plate dark brown, large, broadly rounded,with numerous hairs similar to those of the cauda. The surface of thecauda and anal plate with numerous short, thick, chitinous spine-likeprocesses.

Oviparous female. (Plate III, figs. 26, 27.) Prevailing color brown.Length of body from vertex to apex of anal plate 1.28-1.40 mm. Headreddish-brown, somewhat narrowed in front with the anterior marginrounded. Width through the eyes .300-.314 mm. Eyes reddish-brown withrather large ocular tubercles. Antennae five- or six-segmented, somewhatless than half as long as the body. First two segments yellowish-brown,third, fourth, fifth, and base of sixth yellow, the apical portion of thesixth dark brown. First two segments smooth, the remaining ones imbri­cated. All segments with a few short, hyaline, spine-like hairs. The thirdand fourth segments without sensoria, the usual primary ones at apexof fifth and at base of the unguis. Length of antennal segments as fol­lows: III, .143-.171 mm.; IV, .071-.085 mm., V, .100-.107 mm., VI, base,.071-.085 mm., unguis, .114-.128 mm.

Thorax and abdomen brown, the prothorax more yellowish than thehead, the remainder of the thorax and the abdomen concolorous with thehead, except the segment behind the cornicles which is sometimes moreyellowish. The yellowish prothorax gives the insect the appearance ofhaving a broad light collar just behind the head. Prothorax with a largeblunt lateral tubercle. First abdominal segment and the segment justbehind the cornicles with large pointed tubercles, smaller tubercles on theremaining abdominal segments. Legs mostly yellowish, the apex of the

56 THE FLORIDA ENTOMOLOGIST

hind femora, the apices of all the tibiae and all the tarsi dark brown. Thetibiae of the hind legs not swollen and without sensoria. The legs withshort hyaline spines, these being most numerous on the tibiae. Corniclesdark brown, sub-cylindrical, widest at the middle and slightly narrowedboth at base and apex. Apex not flared. Finely but definitely reticulatedthroughout their length. Length .114-.128 mm. Cauda yellowish to darkbrown, abruptly conical or nearly hemispherical, with five or six slightlycurved hyaline hairs on each side. Anal plate dark brown with numeroushyaline hairs. Surface of the cauda and anal plate thickly covered withshort thick spine-like processes.

Type locality: Gainesville, Florida.Types: Holotype apterous viviparous female taken from

Prunus americana June 6, 1930 (F 656-30). Allotype male,Gainesville, from Prunus americana, Dec. 4, 1931 (F 831-31),on slide with an oviparous female. Morphotype oviparous fe­male, same data as allotype male, on slide with a male and fouroviparous females. All of above types deposited in the U. S.National Museum Collection, Cat. No. 44293. Paratypes in thecollections of the Entomology Department, Florida Agricul­tural Experiment Station, and in that of the author. Typesselected from a large number of apterous viviparous femalesand oviparous females and from ten males. Type material col­lected by the author.

Notes: This small brown aphid is found on the leaves andtender twigs of the native plums. The insect feeds almost ex­clusively along the midrib and larger veins of the leaves andfrequently cause the leaves to become tightly curled. The spe­cies has been under observation for more than three years andan alate individual has never been observed. It seems altogetherprobable that only apterous forms occur. In the latter part ofNovember and during December 1931 a few males were foundamong large numbers of oviparous females upon a small plumtree. The females were depositing eggs in abundance upon thesmaller twigs. Apparently none of these hatched. There is astrong tendency to a variation in the number of antennal seg­ments in this species. About one-third of the viviparous andoviparous females have six segments in the antennae, a fewhave the third and fourth joints only partially divided and theremainder have only five segments. In the case of the males alarger proportion show the six-segmented condition. In someindividuals one antenna_ is six-segmented, the other having butfive segments. In those individuals having only five joints, orhaving the third and fourth only partially divided, the lengthof the third is about equal to the combined lengths of the third

VOL. XVI-No. 4 ;57

and fourth in the six-segmented antennae. The bodies of theliving insects are covered with a light bloom which gives thema slightly bluish appearance.

Records: Prunus ang'ustifolia, Gainesville, Sept. 19, 1928(F 402-28), (apterous vivip. females) ; Prunus umbellata, Mon­ticello, June 4, 1930 (F 650-30), (J. R. Watson), (apterousvivip. females) ; Prunus americana, Gainesville, June 6, 1930(F 656-30), July 30, 1930 (F 679B-30), (apterous viviparousfemales), Nov. 27, 1931 (F 814-31), (oviparous females andmales), Dec. 4, 1931 (F 831-31), (oviparous females and males).

APHIS ASTE,uICOLA, new species

Alate viviparous female. (Plate III, figs. 28-32.) Prevailing color, vari­ous shades of brown. Length, 1.32 mm. Head dark olive-brown, wider thanlong, the front somewhat produced. Width of head through the eyes, .367mm. Eyes dark reddish-brown; large, with prominent ocular tubercles.Ocelli bordered with very dark brown. Antennae six-segmented, about aslong as the body. First two segments concolorous with the head, remain··ing segments slightly lighter brown. Unguis of the sixth segment a littlelonger than the third segment, and the fourth slightly longer than thefifth. Segments III to VI definitely imbricated and with a few very fine,short spines. Length of the antennal segments as follows: I, .082 mm.,II, .054 mm., III, .340 mm., IV, .231 mm., V, .204 mm., VI, base, .109 mm.,unguis, .367 mm. Right antenna with 7 sensoria on the third seg­ment; left antenna with 9 sensoria on the third segment. The sen­soria arranged in a single rather irregular row along one side of thesegment. The sensoria more or less circular in outline and varyinggreatly in size, the largest having a diameter twice as great as that ofthe smallest. The fourth segment of both antennae without sensoria, thefifth with the usual primary terminal one, and the sixth with the usualgroup at the base of the unguis. Rostrum brown with dark brown apex;reaching to middle coxae.

Thorax reddish-brown, the lobes olive-brown, concolorous with thehead; wing insertions yellowish. Prothorax slightly wider than the headwith pointed cone-shaped lateral tubercles. Wings hyaline, stigma andveins grayish-brown. Fore wing with media twice-branched, the secondfork nearer to the margin of the wing than to the first fork. Hind wingwith two oblique veins though the cubitus is only faintly imbricated.Hind wing rather small and narrow. First two pairs of legs with the.femora yellowish or very light brown, the tibiae with dark brown extremi­ties and yellowish middle portions, and the tarsi dark brown. The hindlegs considerably darker than the other two pairs, entirely dark brownexcept the basal portions of the femora which are yellowish.

Abdomen a uniform reddish-brown without markings. Cornicles darkbrown; long slightly tapering with a slight flare at the apex, definitelyimbricated throughout their length .286 mm. Cauda dark brown; long,slender and somewhat constricted near the middle. Two curved hairs on

58 THE FLORIDA ENTOMOLOGIST

each side near the apex. Length of cauda .150 mm. Anal plate darkbrown, rounded, with several slightly curved hairs.

Apterous 'vi1:iparous female. (Plate III, figs. 33-35.) General color darkbrown. Length 1.72 mm. Head yellowish-brown to reddish-brown. Eyesdark brown, rather small and closely appressed to the head. Width ofhead through the eyes .326 mm. Antennae six-segmented, somewhatshorter than the body. First two segments olive-brown, darker than thehead, third, fourth, and fifth, with middle portions yellowish-brown andthe extremities dark brown; sixth segment entirely dark brown. Thirdand fourth segments without sensoria, the fifth with the usual terminalone and the sixth with the usual group at the base of the unguis. Thirdto sixth segments imbricated. Length of the antennal segments as follows:I, .082 mm., II, .054 mm., III, .340 mm., IV, .204 mm., V, .177 mm., VI,base, .095 mm., unguis, .326 mm.

Thorax and abdomen very dark reddish-brown with yellowish globulesshowing through the body wall. Prothorax with small blunt lateral tuber­cles. First two pairs of legs with yellowish femora, tibiae with yellowishmiddle portions, and dark brown apices, and the tarsi dark brown. Hindlegs entirely dark brown except the bases of the femora which are yel­lowish. Cornicles dark brown, widest at the base, tapering toward theapex, imbricated throughout their length. Length, .354 mm. Cauda darkbrown, elongated, constricted below the middle.

Three sharply curved hairs on each side above the middle. Length.150 mm. Anal plate dark brown, semicircular, with three or four slightlycurved hairs on each side.

Type locality: LaCrosse, Florida.Types: Holotype alate viviparous female taken from Aster

sp. Aug. 18, 1930 (F 682-30), deposited in the U. S. NationalMuseum Collection, Cat. No. 44294. Paratypes in the collectionsof the Entomology Department, Florida Agricultural Experi­ment Station and in that of the author. Type selected from aseries of eight alate females. Type material collected by H. E.Bratley.

Notes: This dark brown aphid from wild aster, in generalappearance closely resembles the brown Aphis floridanae fromLactuca. It can, however, be separated from that species by thefollowing characteristics. The fourth segment of the antennais without sensoria, while the third segment of floridanae hasfrom two to five sensoria; the cornicles are relatively longer inastericola and the hind tibiae are entirely brown as contrastedwith the yellowish hind tibiae of floridanae.

Measurements of eight alate females are as follows: length,1.16-1.36 mm.; width of head across the eyes, .340-.367 mm.;length of antenna1 segments, III, .299-.340 mm., IV, .204-.231mm., V, .177-.204 mm., VI, base, .095-.109 mm., unguis, .340-

VOL. XVI-No. 4 59

.367 mm.; length of cornicles .231-.286 mm.; third antennalsegment with 6-10 sensoria.

Records: Aster sp., LaCrosse, Aug. 18, 1930 (F 682-30)(Bratley) .

APHIS FLORIDANAE, new species

Alatevivipal'ous female. (Plate III, figs. 86-40.) Prevailing colorbrown. Length, 1.12 mm. Head dark brown, much wider than long, with­out antennal tubercles, front rounded. Width through the compound eyes,.367 mm. Eyes very dark brown; large, with prominent ocular tubercles.Ocelli bordered with very dark brown. Rostrum light brown with extremetip dark brown; reaching nearly to the middle coxae. Antennae shorterthan the body, six-segmented. All the segments brown, somewhat lighterthan the head. Segment III of the right antenna with eight circular sen­soria, the fourth segment with 3 sensoria. Left antenna with 11 sensoriaon the third segment, and 2 sensoria on the fourth. Fifth segment of eachantenna with the usual prim.ary sensorium, secondary sensoria absent.The sixth segment with the usual group of sensoria at the base of theunguis. The sensoria of the third segment are scattered over most ofone side of the segment and extend from base to apex. The sensoria ofthe fourth segment are arranged in a straight row. Length of the anten­nal segments as follows: I, .054 mm.; II, .054 mm.; III, .258 mm.; IV,.136 mm.; V, .122 mm.; VI, base, .068 mm.; unguis, .231 mm. SegmentsIII to VI are distinctly imbricated.

Thorax brown, the lobes same shade as the head, the remaining por­tions somewhat lighter. Prothorax slightly wider than the head withsmall lateral tubercles. Wing insertions yellowish. Wings hyaline, theveins brown, the stigma yellowish-brown. Fore wing with radial sectorpresent, media twice-branched, the second fork much nearer to the mar­gin of the wing than the first fork. Hind wing with two oblique veins.Legs mostly brown. The femora dark brown with the bases yellowish;those of the fore legs somewhat lighter than those of the other two pairs.Tibiae yellowish, with apices dark brown; tarsi dark brown.

Abdomen mostly dark brown with lighter brown areas where the em­bryos are visible through the body wall. Cornicles dark brown; imbri­cated, somewhat curved, not much variation in width from base to apex.Length, .163 mm. Cauda brown; elongated, tapering, somewhat constrictednear the middle, with a few hyaline, curved hairs on each side. Length ofcauda, .136 mm. Anal plate dark brown; broadly rounded with numerouscurved hyaline hairs.

Apterous 11iviparous female. (Plate III, figs. 41-44.) General colorbrown. Head dark yellowish-brown; somewhat wider than long, frontsharply rounded so that the outline of the head is triangular when viewedfrom above. Eyes dark reddish-brown; with definite ocular tubercles.First two antennal segments concolorous with the head; third, fourth,and base of the fifth pale yellowish; apex of the fifth and all of the sixthlight brown. Segments III to VI imbricated. The usual sensoria near theapex of the fifth and at the base of the unguis of the sixth. Rostrumlight brown, reaching slightly beyond the first coxae.

60 THE FLORIDA ENTOMOLOGIST

Prothorax yellowish-brown, remainder of the thorax and the abdomenreddish-brown. Femora dark brown, the tibiae mostly yellowish, with theapices dark brown; tarsi dark brown. Cornicles dark brown; somewhatcurved, imbricated; widest at the base and tapering slightly. Cauda yel­lowish-brown; elongated, with a constriction above the middle; five orsix hyaline, curved hairs on each side. Anal plate slightly darker thanthe cauda; rounded, with several hyaline hairs. Measurements of theapterous female as follows: length, 1.32 mm.; width of head, .340 mm.;antennal segments, I, .068 mm., II, .048 mm., III, .177 mm.; IV, .102 mm.,V, .095 mm., VI, base, .074 mm., unguis, .204 mm., cornicles, .190 mm.,cauda, .150 mm.

Type locality: Tampa, Florida.Types: Holotype alate viviparous female collected July 21,

1930 from Lactuca floridana, deposited in the' U. S. NationalMuseum Collection, Cat. No. 44295. Paratypes from the samecollection as the holotype in the collections of the EntomologyDepartment of the Florida Agr. Exp. Sta., and in that of theauthor. Type selected from a series of eight specimens. Typematerial collected by F. S. Blanton.

Notes: This brown aphid though smaller than Aphis rumicisresembles that species in general appearance. It differs fromAphis rumicis in the following respects: the third antennal seg:..ment has a smaller number of sensoria than in rumicis. Thethird segment is longer in proportion to the fourth and fifth,and the base of the sixth is shorter in relation to the unguisthan is the case in rumicis. The cornicle is distinctly longerthan the fourth antennal segment while in rumicis the cornicleis usually shorter than the fourth segment. A study of eightalate females gave the following measurements: antennal seg­ments, III, .218-.258 mm., IV, .129-.150 mm., V, .109-.122 mm.,VI, base, .068-.073 mm., unguis, .218-.245 mm.; cornicles, .150­.163 mm.; the third segment with 8-12 sensoria, the fourth with2-5 sensoria.

Records: Lactuca floridana, Tampa, July 21, 1930 (F 672-30)(Blanton) .

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FLORIDA ENTOMOLOGISTOfficial Organ of The Florida Entomological Society, Gainesville,

Florida.

VOL. XVI JANUARY, 1933 NO.4

J. R. WATSON EditorE. W. BERGER Associate EditorH. E. BRATLEY Business Manager

Issued once every three months. Free to all members of theSociety.

Subscription price to non-members is $1.00 per year in ad­vance; 35 cents per copy.

SOME THYSANOPTERA OF THE

GREAT SMOKY MOUNTAINS

The Thysanoptera here listed were collected near Gatlinburg,Tenn., on the western edge of the Great Smoky MountainNational Park, during the latter half of August and the first fewdays of September, 1932.

No claim is made that the list is at all complete for the regionand the time of year. Nevertheless, it is not without interestas it contains several new species and greatly extends the rangeof several other species. The new species will be described inanother paper.

Frankliniella tritici (Fitch). As was to be expected this com­mon flower thrips was the most abundant of all species in blos­soms. It occurred in nearly all species of blossoms examined.

Frankliniella stylosa Hood. This species was also found com­mon in nearly all species of blossoms examined and at all alti­tudes from 1000 to 5000 feet. It is a widespread species butdoes hot seem to have before been reported as abundant in anylocality.

Frankliniella williamsi Hood. Taken in blossoms of Ragweed,apparently not as common as in South Carolina, judging froma collection of Thysanoptera from that state gathered by Mr.J. G. Watts and examined by the writer.

Ctenothrips frosti Moulton. This species was described byMoulton (Bull. Brooklyn Ent. Soc., Vol. XXIV, No.4, p. 233-4.)from a single female taken in Massachusetts. Three macrop­terous females and four males were taken by sweeping vege­tation (mostly Solidago spp. and asters) at an altitude of ap-

62 THE FLORIDA ENTOMOLOGIST

proximately 4000 feet. Descriptions of the macropterous fe­males and males follow:Macropterous female.

Color: Pterothorax lighter than other parts of body, otherwise coloredas described for brachypterous female.

Wings slender, reaching beyond the tip of abdomen. Basal fifth alight yellowish brown, second fifth dark brown, remaining three fifthslighter brown with a lighter longitudinal streak. Anterior vein with 18to 21 conspicuous, brown, long, pointed bristles. Posterior vein with 14 to17, evenly spaced except the apical one. Otherwise as described for thebrachypterous holotype.

Male.Colored as in the female, a long-oval, light spot on each abdominal seg­

ment from 3rd to 8th.Somewhat smaller than the females.Measurements (average of 4 males). Total body length 1.5 mm.; head,

length .16 mm.; width across the eyes, .16 mm.; prothorax, length .15mm., width .22 mm.; pterothorax, width .33 mm.; abdomen, width .30 mm.Antennal segments: length (width) I, 35 (36); II, 44 (31); III, 91 (23);IV, 74 (25); V, 58 (20); VI, 75 (24); VII, 14'(10); VIII, 23 (7) microns;to'al length .41 mm.

Thrips imp21' Hood. In blossoms of Impatiens and Saponaria.Sericothrips va'riabilis Beach. On ragweed.Plesiothrips perplex~ls Beach. Under leaf sheaths of barn­

yard grass (Panicwn Crus-galli L.).Haplothrips g1'aminis Hood. On grass. In blossoms of Indian

Pipe (Monotropa ~miflora).

The following species were collected from decaying leave.:;taken from the ground and dried out in a simplified Berlese'funnel. This sort of material was not nearly as rich in Thysan­optera as similar material in Florida. A dozen collections ofsuch material taken from the western slope of the GreatSmokies, even the driest situations, yielded not a single indi­vidual. The six species taken were in material from a drier(east slope) ridge to the west of Gatlinburg. Evidently thewestern slope of the Smokies is too wet and cold for the devel­opment of this chiefly southern fauna.

Trichothrips americana Hood. Trichothrips pergandi Hood.Trachythrips watsoni Hood. Two apparently undescribed spe­cies of Plectrothrips and one of Z ygothrips. The presence ofthe Trachythrips, hitherto recorded only from Florida, was sur­prising. The writer has also taken it in Clayton, Ga., and ParrisIsland, S. C.

J. R. WATSON.